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Design and development of safety evaluation system of buildings on a seismic field based on the network platform 被引量:3
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作者 Sun Baitao Zhang Lei +1 位作者 Chen Xiangzhao Zhang Xinghua 《Earthquake Engineering and Engineering Vibration》 SCIE EI CSCD 2015年第1期157-167,共11页
This paper describes a set of on-site earthquake safety evaluation systems for buildings, which were developed based on a network platform. The system embedded into the quantitative research results which were complet... This paper describes a set of on-site earthquake safety evaluation systems for buildings, which were developed based on a network platform. The system embedded into the quantitative research results which were completed in accordance with the provisions from Post-earthquake Field Works, Part 2: Safety Assessment of Buildings, GB18208.2 -2001, and was further developed into an easy-to-use software platform. The system is aimed at allowing engineering professionals, civil engineeing technicists or earthquake-affected victims on site to assess damaged buildings through a network after earthquakes. The authors studied the function structure, process design of the safety evaluation module, and hierarchical analysis algorithm module of the system in depth, and developed the general architecture design, development technology and database design of the system. Technologies such as hierarchical architecture design and Java EE were used in the system development, and MySQL5 was adopted in the database development. The result is a complete evaluation process of information collection, safety evaluation, and output of damage and safety degrees, as well as query and statistical analysis of identified buildings. The system can play a positive role in sharing expert post-earthquake experience and promoting safety evaluation of buildings on a seismic field. 展开更多
关键词 safety evaluation of buildings seismic field algorithm model DATABASE evaluation system
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Research on the effect estimation of seismic safety evaluation
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作者 ZOU Qi-jia(邹其嘉) +1 位作者 TAO Yu-lu(陶裕禄) 《Acta Seismologica Sinica(English Edition)》 CSCD 2004年第1期87-98,共12页
Seismic safety evaluation is a basic work for determining the seismic resistance requirements of major construc-tion projects. The effect, especially the economic effect of the seismic safety evaluation has been gener... Seismic safety evaluation is a basic work for determining the seismic resistance requirements of major construc-tion projects. The effect, especially the economic effect of the seismic safety evaluation has been generally con-cerned. The paper gives a model for estimating the effect of seismic safety evaluation and calculates roughly the economic effect of seismic safety evaluation with some examples. 展开更多
关键词 seismic safety evaluation economic effect social effect estimation model
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Dynamic probability evaluation of safety levels of earth-rockfill dams using Bayesian approach
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作者 Zi-wu FAN Shu-hai JIANG Ming ZHANG 《Water Science and Engineering》 EI CAS 2009年第2期61-70,共10页
In order to accurately predict and control the aging process of dams, new information should be collected continuously to renew the quantitative evaluation of dam safety levels. Owing to the complex structural charact... In order to accurately predict and control the aging process of dams, new information should be collected continuously to renew the quantitative evaluation of dam safety levels. Owing to the complex structural characteristics of dams, it is quite difficult to predict the time-varying factors affecting their safety levels. It is not feasible to employ dynamic reliability indices to evaluate the actual safety levels of dams. Based on the relevant regulations for dam safety classification in China, a dynamic probability description of dam safety levels was developed. Using the Bayesian approach and effective information mining, as well as real-time information, this study achieved more rational evaluation and prediction of dam safety levels. With the Bayesian expression of discrete stochastic variables, the a priori probabilities of the dam safety levels determined by experts were combined wfth the likelihood probability of the real-time check information, and the probability information for the evaluation of dam safety levels was renewed. The probability index was then applied to dam rehabilitation decision-making. This method helps reduce the difficulty and uncertainty of the evaluation of dam safety levels and complies with the current safe decision-making regulations for dams in China. It also enhances the application of current risk analysis methods for dam safety levels. 展开更多
关键词 dynamic probability evaluation dam safety levels Bayesian approach sorting decision-making dam rehabilitation and reinforcement
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Active Tectonic Research for Seismic Safety Evaluation of Long-Line Engineering Sites in China
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作者 Ran Yongkang Chen Lichun 《Earthquake Research in China》 2005年第3期317-326,共10页
Long-line engineering sites usually have to pass through active tectonics, so the research of active tectonics is of great importance to seismic safety evaluation of this sort of site. In the paper, basing on the summ... Long-line engineering sites usually have to pass through active tectonics, so the research of active tectonics is of great importance to seismic safety evaluation of this sort of site. In the paper, basing on the summarization and analysis of the requirements for seismic safety evaluation of long-line engineering site and the status quo of active tectonics research, we propose the focal points of active tectonics research for seismic safety evaluation of long-line engineering sites, including the research contents, technical targets and routes, and the submission of the achievements, etc. Finally, we make a preliminary analysis and discussion about the problems existing in the present-day active tectonics research for seismic safety evaluation of long-line engineering sites. 展开更多
关键词 seismic safety evaluation Long-line engineering site Active tectonics
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Simplified stiffness-based approach for seismic performance evaluation of moment-resisting frame
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作者 于琦 孟少平 +1 位作者 吴京 孙巍巍 《Journal of Southeast University(English Edition)》 EI CAS 2009年第2期241-246,共6页
Based on the concept of stiffness degradation, a damage index of the whole frame and the storey is proposed for the frame seismic performance evaluation. The index is compatible with the non-linear static analysis (e... Based on the concept of stiffness degradation, a damage index of the whole frame and the storey is proposed for the frame seismic performance evaluation. The index is compatible with the non-linear static analysis (e. g. the pushover analysis), and the structural damage is considered via plastic hinges. Simultaneously, a practical approach is developed to obtain the relationships between the proposed index and earthquake intensities based on the capacity spectrum method. The proposed index is then illustrated through two low-rise reinforced concrete frames, and it is also compared with some other indices. The results indicate that the proposed index is on the safe side and not sensitive to the lateral load pattern. The storey index is helpful to reflect the storey damage and to uncover the position of the weak storey. Finally, the relationship between performance levels and damage index values is also proposed through statistical analysis for the performance-based seismic evaluation. 展开更多
关键词 damage index seismic evaluation capacity spectrum method FRAME lateral load pattern pushover analysis performance level stiffness degradation
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Study on mechanical characteristics and safety evaluation method of steel frame structure after fire
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作者 Qiang Sun Congcong Guan Dingtang Wang 《Theoretical & Applied Mechanics Letters》 CAS 2014年第3期74-79,共6页
Mechanical characterization of steel frame structure after fire are ana- lyzed based on fire dynamics, heat transfer theory, structural mechanics, and finite element theory. We study the temperature characteristics an... Mechanical characterization of steel frame structure after fire are ana- lyzed based on fire dynamics, heat transfer theory, structural mechanics, and finite element theory. We study the temperature characteristics and mechanical prop- erties of steel flame structure under different fire locations and propose a safety evaluation method. We also analyze damage level of main flame components, maximum temperature of fire, thermal characteristics of flame components, fir- ing duration, etc. to provide useful information for fire resistance design of the steel frame structure and post-disaster safety evaluation. 展开更多
关键词 FIRE steel frame mechanical characteristics safety level safety evaluation
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Nutritional and Safety Evaluation of Local Weight-Gain Formulas in the Kingdom of Saudi Arabia (KSA) Markets
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作者 Nora Abdullah Al-Faris 《Food and Nutrition Sciences》 2014年第14期1341-1351,共11页
This study was conducted to examine the nutritional content, contamination levels, and biological effects of 3 local prepared formulas. Formula (1) contained mixed nuts;formula (2) contained moghat, honey and royal je... This study was conducted to examine the nutritional content, contamination levels, and biological effects of 3 local prepared formulas. Formula (1) contained mixed nuts;formula (2) contained moghat, honey and royal jelly, while formula (3) contained honey, fenugreek and royal jelly. Groups of albino rats (90 rats) were randomly allocated to diets of control group or 1 - 3 treatment groups. The tested diets contained 15% carbohydrate. The weight and food intake were recorded. Blood tests were conducted to determine total cholesterol, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, triglycerides, glucose, urea, creatinine, white blood cell count (WBC), red blood cell count (RBC), haemoglobin (HB), mean corpuscular volume (MCV), and haematocrit (HCT). Results showed that bacterial contamination was found in formula (1) and formula (3). Fungal contamination was detected in formula (2) and formula (3). Body weight increased significantly in the rats fed treatment formulas compared to the control group. The blood tests indicated significant increases in the levels of glucose, WBC, HCT, total cholesterol, LDL cholesterol, and triglycerides as well as a significant decrease in HDL level in the group (2) was fed formula (1) the control. In conclusion, these findings indicate that these local formulas may not be safe, and further studies are required to understand the consequences of a long-term consumption of these formulas. 展开更多
关键词 Weight Gain FORMULAS Lipid PRofILE Haematological PRofILE Contamination level NUTRITIONAL Content evaluation of Food safety
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Analysis of seismic disaster failure mechanism and dam-break simulation of high arch dam 被引量:2
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作者 Zhang Jingkui Zhang Liaojun 《Earthquake Engineering and Engineering Vibration》 SCIE EI CSCD 2014年第2期327-335,共9页
Based on a Chinese national high arch dam located in a meizoseismal region, a nonlinear numerical analysis model of the damage and failure process of a dam-foundation system is established by employing a 3-D deformabl... Based on a Chinese national high arch dam located in a meizoseismal region, a nonlinear numerical analysis model of the damage and failure process of a dam-foundation system is established by employing a 3-D deformable distinct element code(3DEC) and its re-development functions. The proposed analysis model considers the dam-foundation-reservoir coupling effect, infl uence of nonlinear contact in the opening and closing of the dam seam surface and abutment rock joints during strong earthquakes, and radiation damping of far fi eld energy dissipation according to the actual workability state of an arch dam. A safety assessment method and safety evaluation criteria is developed to better understand the arch dam system disaster process from local damage to ultimate failure. The dynamic characteristics, disaster mechanism, limit bearing capacity and the entire failure process of a high arch dam under a strong earthquake are then analyzed. Further, the seismic safety of the arch dam is evaluated according to the proposed evaluation criteria and safety assessment method. As a result, some useful conclusions are obtained for some aspects of the disaster mechanism and failure process of an arch dam. The analysis method and conclusions may be useful in engineering practice. 展开更多
关键词 high arch dam complex foundation 3DEC disaster mechanism dam-break process simulation seismic safety evaluation
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The Principle and Method for Delineation of Potential Seismic Sources in Northwest Yunnan
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作者 Zhou Qing Guo Shunmin Xiang Hongfa 《Earthquake Research in China》 2005年第2期201-213,共13页
Based on the collection and analysis of achievements of other scholars, and by consulting the results of seismic safety evaluation of engineering sites and field surveys of recent years, the seismotectonic indicators ... Based on the collection and analysis of achievements of other scholars, and by consulting the results of seismic safety evaluation of engineering sites and field surveys of recent years, the seismotectonic indicators are determined for northwest Yunnan and its vicinity, and then potential seismic sources are further delineated. In practice, the following principles are applied: for areas with strong historical earthquakes, the recurrence principle is used to determine the upper bound magnitude; for areas with distinct seismogenic structure but no historical strong earthquake records, the tectonic analogy principle is used in the light of the size and activity behavior of the structure; for areas where the segmentation of the active fault is well studied, the potential sources will be demarcated more precisely; and for areas with buried fault, the seismicity pattern and geophysical abnormity are used to determine the direction of the major axis of the potential seismic source. 展开更多
关键词 Potential seismic source seismic safety evaluation Northwest Yunnan
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FUZZY RELIABILITY-BASED OPTIMUM DESIGN OF LAMINATED COMPOSITES 被引量:6
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作者 Wei Junhong Chen Jianqiao Ge Rui 《Acta Mechanica Solida Sinica》 SCIE EI 2006年第3期255-263,共9页
In conventional reliability-based optimum design of structures, the reliability is computed based on the probability assumption, and the design objective and constraint are considered as deterministic ones. In many ca... In conventional reliability-based optimum design of structures, the reliability is computed based on the probability assumption, and the design objective and constraint are considered as deterministic ones. In many cases, however, there exist some fuzzy factors in the design objective and constraint functions. In this paper, the fuzzy reliability and fuzzy constraint are introduced to establish the fuzzy reliability-based optimum model for laminated composites. The examples show that the method developed in this paper can give consideration to both the reliability demand and the economic aspect of a structure. Since the fuzzy reliability-based optimum design is a 'soft' design, the present results provide a new methodology for the effective evaluation of structural reliability and bring us an alternative optimum design idea. 展开更多
关键词 fuzzy reliability fuzzy constraint the best safety level fuzzy synthetic evaluation
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Exploration and safety evaluation on Panzhihua iron barren rock with physical geographical methods
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作者 Xianguo TUO Wan LEI +2 位作者 Zhengqi XU Jinxi LI Keliang MU 《Chinese Journal Of Geochemistry》 EI CAS 2006年第B08期37-37,共1页
关键词 物理地质勘探 地震 高密度电法 精密度 岩石
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基于爆破荷载等效施加方法的振动波形预测与古建筑安全评估 被引量:1
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作者 乔雄 刘文高 +4 位作者 倪伟淋 张伟 杨鑫 黄锦聪 刘锦龙 《地震工程学报》 CSCD 北大核心 2024年第1期16-25,共10页
隧道爆破开挖产生的振动对邻近的古建筑有着不容忽视的安全影响,为研究爆破振动波的传播规律以及预测地面振动效应和分析临近古建筑结构的安全性,以拉卜楞隧道为依托,采用现场实测结合数值模拟分析的方法,预测爆破荷载作用下拉卜楞寺的... 隧道爆破开挖产生的振动对邻近的古建筑有着不容忽视的安全影响,为研究爆破振动波的传播规律以及预测地面振动效应和分析临近古建筑结构的安全性,以拉卜楞隧道为依托,采用现场实测结合数值模拟分析的方法,预测爆破荷载作用下拉卜楞寺的动力响应。结果表明:(1)随着单响总药量的增加,质点振动速度增大,衰减比也随之增大,说明高频振动衰减快,低频振动衰减慢;(2)通过理论计算将爆破荷载等效施加在弹性边界或隧道开挖轮廓面上,动力模拟结果表明在大于40 m的中远区两者振速变化规律趋于一致,故将荷载施加在开挖轮廓面上是合理的;(3)爆破地震波自由界面处体波经过反射形成沿表面传播的Rayleigh波,结合数值模拟山体内部地震波的传播规律发现,经反射叠加山体内部形成复杂的振动区;(4)当地震波到达拉卜楞寺最近点时,径向振速峰值为0.000672 cm/s,垂向振速峰值为0.000448 cm/s,合成振速峰值为0.000807 cm/s,远小于古建筑安全振动控制标准。 展开更多
关键词 爆破振动 等效荷载 数值模拟 爆破地震波 安全评价
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城市地下空间地质安全多级变模糊变权综合评价法 被引量:2
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作者 刘洪华 王忠胜 +2 位作者 耿林 赵玉婷 陈闫 《安全与环境学报》 CAS CSCD 北大核心 2024年第1期19-32,共14页
城市地下空间地质安全评价可为城市地下空间规划和工程建设提供重要决策支持。城市地下空间地质安全评价问题是一个十分复杂的系统综合评价问题。目前常用的评价方法主要有层次分析法、模糊综合评价法、灰色关联度法、可拓物元法等,模... 城市地下空间地质安全评价可为城市地下空间规划和工程建设提供重要决策支持。城市地下空间地质安全评价问题是一个十分复杂的系统综合评价问题。目前常用的评价方法主要有层次分析法、模糊综合评价法、灰色关联度法、可拓物元法等,模糊综合评价法是其中应用效果最好、最广泛的方法。但目前常用的评价方法都属于常权综合评价法,且评价模型普遍采用加权平均模型,导致评价结果易受平均效应影响,并不适合复杂的非线性系统评价。将模糊集理论、可变模糊集理论及变权理论三者融合,提出了多级变模糊变权综合评价法,该方法的综合评价模型更加完善,适应能力更强。在理论上,通过修改综合评价模型,所提出的算法就可以退化为常用的模糊类方法,如模糊综合评价法、模糊变权综合评价法、可变模糊综合评价法。以青岛市红岛区的城市地下空间地质安全性评价为例,通过对比分析4种不同评价方法的评价结果,验证了所提方法的先进性及应用效果。多级变模糊变权综合评价法是一种多理论集成的综合评价方法。与各种常用的综合评价方法相比,该方法更加适用于城市地下空间地质安全评价及其他复杂系统的综合评价。 展开更多
关键词 安全工程 地质安全性评价 复杂系统评价 城市地下空间 多级变模糊变权 综合评价模型
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基于边缘计算的光通信网络安全风险等级评估方法 被引量:1
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作者 杜玉红 侯守明 《激光杂志》 CAS 北大核心 2024年第3期209-213,共5页
以提升光通信网络安全性为目的,提出基于边缘计算的光通信网络安全风险等级评估方法。首先构建光通信网络安全风险评估指标,并利用各边缘计算节点计算各终端指标数据。以各评估指标数据计算结果为基础,在云中心计算层内构建模糊综合评... 以提升光通信网络安全性为目的,提出基于边缘计算的光通信网络安全风险等级评估方法。首先构建光通信网络安全风险评估指标,并利用各边缘计算节点计算各终端指标数据。以各评估指标数据计算结果为基础,在云中心计算层内构建模糊综合评估模型,以模糊数学理论内的隶属度为基础,实现光通信网络安全风险多层次模糊评估。实验结果表明,该方法的光通信网络安全风险等级评估精度最高为97%,评估误差率最低为3%,该方法能够有效实现评估过程,基于评估结果进行网络优化能够提升光通信网络安全性能。 展开更多
关键词 边缘计算 光通信网络 安全风险等级 指标体系 模糊综合评估 评估集
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区域性地震安全性评价成果应用研究——以雄安新区为例 被引量:1
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作者 王虹宇 张合 仇硕 《防灾减灾学报》 2024年第2期30-34,共5页
为总结区域性地震安全性评价成果应用,以雄安新区为例,着重介绍规划建设区区域性地震安全性评价工作。雄安新区在完成活动断层探察、地震动参数区域划分、地震地质灾害风险评估的基础上,建设了区评成果管理应用系统,取得的成果应用于服... 为总结区域性地震安全性评价成果应用,以雄安新区为例,着重介绍规划建设区区域性地震安全性评价工作。雄安新区在完成活动断层探察、地震动参数区域划分、地震地质灾害风险评估的基础上,建设了区评成果管理应用系统,取得的成果应用于服务新区规划建设、工程抗震设防、地震地质灾害防治等方面。本研究对区评成果服务于城市规划、工程建设、防震减灾能力提升具有一定的促进作用。 展开更多
关键词 雄安新区 区域性地震安全性评价 城市规划 工程建设 防震减灾
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高震区超长大跨度公铁两用悬索桥地震响应及安全性评估
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作者 杨仕力 熊梓言 +4 位作者 陈小平 杨华平 施洲 夏正春 令行 《铁道建筑》 北大核心 2024年第10期6-12,共7页
采用反应谱分析法和线性时程分析法对巽他海峡大桥在多遇地震及设计地震下的抗震性能进行分析,并探究行波效应、阻尼器与柔性中央扣对该桥抗震性能的影响。结果表明:巽他海峡大桥基本周期为19.88 s,长周期特性较为明显,且横向刚度小于... 采用反应谱分析法和线性时程分析法对巽他海峡大桥在多遇地震及设计地震下的抗震性能进行分析,并探究行波效应、阻尼器与柔性中央扣对该桥抗震性能的影响。结果表明:巽他海峡大桥基本周期为19.88 s,长周期特性较为明显,且横向刚度小于竖向刚度和纵桥向刚度。时程分析结果不小于反应谱分析结果的80%,满足规范要求。多遇地震水准下,混凝土与钢结构最大组合应力分别为-11.7、-189.1 MPa,各构件仍处于弹性工作阶段。设计地震水准下,除应力集中区域外,各连接部位最大应力仍小于设计强度,具有足够的安全储备。参数分析结果表明,非一致激励时间差为0.6 s或0.8 s时地震响应比时间差为1.0 s时更不利。阻尼器对主梁最大应力、梁端纵向位移及塔梁相对位移有明显影响,柔性中央扣对桥梁自振特性和主梁纵桥向变形影响较大。 展开更多
关键词 公铁两用桥梁 抗震性能 时程分析 悬索桥 安全性评估 反应谱分析 巽他海峡大桥
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区域性地震安全性评价成果综合管理服务系统--以雄安新区为例
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作者 王虹宇 张合 《华北地震科学》 2024年第2期14-17,24,共5页
在充分调研地震安全性评价管理系统现状的基础上,结合河北省区域性地震安全性评价工作实际,对成果综合管理服务系统进行设计和研究,确定数据库构架、服务内容和形式,基于此建设雄安新区区域性地震安全性评价成果管理系统,系统构建合理... 在充分调研地震安全性评价管理系统现状的基础上,结合河北省区域性地震安全性评价工作实际,对成果综合管理服务系统进行设计和研究,确定数据库构架、服务内容和形式,基于此建设雄安新区区域性地震安全性评价成果管理系统,系统构建合理的总体框架、数据库构成和创新内容,展示系统功能和社会服务相关内容,为地震管理部门及相关从业人员提供快速便捷的查询服务与决策支持,从而实现对雄安新区区域性地震安全性评价成果数据的有效综合管理。 展开更多
关键词 区域性地震安全性评价 抗震设防 管理系统
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基于ABAQUS的闸室结构整体抗震安全分析——以箭杆河南彩节制闸为例 被引量:1
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作者 郭子豪 赵英智 +1 位作者 杨志刚 苏锴 《水利水电快报》 2024年第2期48-52,共5页
抗震安全是水闸结构安全中的重要组成部分,对水闸进行抗震安全复核十分必要。以北京市顺义区南彩节制闸为研究对象,基于ABAQUS三维有限元分析软件,采用振型分解反应谱法对闸室结构整体抗震安全进行有限元复核分析计算。计算结果表明:在... 抗震安全是水闸结构安全中的重要组成部分,对水闸进行抗震安全复核十分必要。以北京市顺义区南彩节制闸为研究对象,基于ABAQUS三维有限元分析软件,采用振型分解反应谱法对闸室结构整体抗震安全进行有限元复核分析计算。计算结果表明:在正常蓄水工况地震作用下,闸室最大拉应力及压应力均出现在闸墩与排架柱连接处,分别达到6.70 MPa和7.74 MPa,结合工程现场结构配筋考虑,结构满足安全需求。不同工况作用下,闸室结构抗滑稳定安全系数大于水闸设计规范要求值,满足安全需求。 展开更多
关键词 节制闸 振型分解反映谱法 抗震安全复核 结构安全评价
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改进CRITIC与TOPSIS的区域建筑安全评价算法 被引量:1
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作者 尹帮治 田桂丰 《福建电脑》 2024年第6期27-33,共7页
为了监控区域建筑危险源,提高区域建筑的安全性水平,本文设计了一种区域建筑安全等级评价算法。该算法结合改进的CRITIC权重与TOPSIS模型,突出多个评价指标之间的比较强度,关注指标间的相互关系,充分考虑候选方案的全局最优解,对区域建... 为了监控区域建筑危险源,提高区域建筑的安全性水平,本文设计了一种区域建筑安全等级评价算法。该算法结合改进的CRITIC权重与TOPSIS模型,突出多个评价指标之间的比较强度,关注指标间的相互关系,充分考虑候选方案的全局最优解,对区域建筑安全等级的评价提出了具体的方法步骤。通过工程实例验证,本文算法在区域建筑安全等级评价中表现出明显优势,可以为决策者提供更科学、更合理的决策依据。 展开更多
关键词 改进CRITIC权重 TOPSIS模型 区域建筑 安全等级评价
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高放废物地质处置中核素迁移研究进展
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作者 唐振平 杜聪 +6 位作者 李南 毕文婷 吴鹏 孙浩然 汪佳伟 豆佳乐 段先哲 《原子能科学技术》 EI CAS CSCD 北大核心 2024年第8期1704-1715,共12页
核技术在工业、农业、医学等领域有广泛应用,但也产生了大量放射性废物,其中高放废物含有大量放射性强、毒性大、半衰期长和释热量大的核素,对自然环境和人类健康构成了巨大的威胁,其安全处置一直是放射性废物管理中的重点难点问题,受... 核技术在工业、农业、医学等领域有广泛应用,但也产生了大量放射性废物,其中高放废物含有大量放射性强、毒性大、半衰期长和释热量大的核素,对自然环境和人类健康构成了巨大的威胁,其安全处置一直是放射性废物管理中的重点难点问题,受到国际社会的广泛关注。目前,深地质处置被认为是高放废物处理处置最有效可行的方法,而地质屏障中放射性核素迁移研究是高放废物地质处置安全评价的关键课题之一。本文首先对高放废物地质处置及核素迁移研究进行概述,然后论述了核素迁移数值模拟研究的关键技术(包括物理模型以及数学模型),最后分析了数值模拟在不同核素迁移研究中的应用进展。通过综合分析可知,目前核素迁移研究还存在以下主要问题:1)核素迁移的机理和规律尚不完全清楚,需要更多的基础研究和数据支撑;2)核素迁移的实验技术和设备还有待改进,需要更高的精度和灵敏度;3)核素迁移的数值模拟还存在不确定性和误差,需要进行更有效的验证和优化。未来的研究方向主要包括:1)加强核素迁移的理论研究,揭示核素在复杂条件下的迁移行为及其控制机制;2)发展核素迁移的实验技术,提高实验数据的质量和可信度;3)创新核素迁移的数值模拟方法,增强模型的适应性和预测能力;4)完善核素迁移的安全评价体系,建立更合理的评价指标和方法。 展开更多
关键词 高放废物 深地质处置 核素迁移 安全评价 数值模拟
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